: of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch

Examples of fast-twitch in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Strengthens fast-twitch muscle fibers, which helps with quick, powerful movements. Fred Sassani, Austin American-Statesman, 15 Nov. 2024 But there’s huge variation around this average: some people are mostly slow-twitch, others are mostly fast-twitch. Alex Hutchinson, Outside Online, 12 Nov. 2024 For the specific goal of hanging on to your fast-twitch fibers, there may also be a case for doing some heavy resistance training, with sets of six reps of fewer. Alex Hutchinson, Outside Online, 28 Oct. 2024 Follow the money: Over the course of Golden Week, the list of the most-active stocks on Interactive Brokers, a platform popular with fast-twitch retail investors, was dominated by Chinese tickers. Felix Salmon, Axios, 10 Oct. 2024 People with large amounts of those explosive, fast-twitch muscle fibers may pack a powerful punch or hoist a massive clean and jerk. Bethany Brookshire, Scientific American, 1 Oct. 2024 The allure of reactivity and fast-twitch responses has such a constellation of factors. Sohee Jun, Forbes, 27 Sep. 2024 That's hardly noticeable, but even the slightest input lag might put off hard-core gamers and fans of action titles that require fast-twitch reflexes. PCMAG, 12 Sep. 2024 Lightning reactions and fast-twitch muscle fibers are a necessity in this event, while the slip of a foot or a momentary lapse of concentration can result in an athlete’s elimination from the competition. George Ramsay, CNN, 6 Aug. 2024

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of fast-twitch was in 1958

Dictionary Entries Near fast-twitch

Cite this Entry

“Fast-twitch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fast-twitch. Accessed 5 Dec. 2024.

Medical Definition

fast-twitch

adjective
: of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch
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